function nowTime() {//获取当前时间
    let now = new Date();
    let _month = (10 > (now.getMonth() + 1)) ? '0' + (now.getMonth() + 1) : now.getMonth() + 1;
    let _day = (10 > now.getDate()) ? '0' + now.getDate() : now.getDate();
    let _hour = (10 > now.getHours()) ? '0' + now.getHours() : now.getHours();
    let _minute = (10 > now.getMinutes()) ? '0' + now.getMinutes() : now.getMinutes();
    let _second = (10 > now.getSeconds()) ? '0' + now.getSeconds() : now.getSeconds();
    return now.getFullYear() + '-' + _month + '-' + _day + '/' + _hour + ':' + _minute + ':' + _second;
    }
    export default nowTime